If you start an isolated job, then kill the instance managing it, Tower will be unable to determine the status of the job, and manual intervention will be necessary. Contact Ansible via the Red Hat Customer portal at https://access.redhat.com/ for instructions specific to your scenario.

If placing Tower nodes behind some sort of proxy, this may pose a security issue. This approach assumes traffic is always flowing exclusively through your load balancer, and that traffic that circumvents the load balancer is suspect to X-Forwarded-For header spoofing. See Proxy Support.

When Tower is accessed via hostname only (e.g. https://my-little-tower), trying to read the SAML metadata from /sso/metadata/saml/ generates a sp_acs_url_invalid server error.

A configuration in which uses SAML when accessing Tower via hostname only instead of an FQDN, is not supported. Doing so will generate an error that is captured in the tower.log file and in the browser with full traceback information.

Live events status dots are either seen as a red or orange dot at the top of the Tower Dashboard when something goes wrong. They are not seen at all when the system is in a healthy state. If you encounter a red or orange live events status indicator, even when your system seems fine, the following suggestions may offer a solution:

Try manually refreshing/reloading your browser page.

Try changing web browsers, as Firefox and Safari have been reported to have issues trusting self-signed certificates.

Try creating a self-signed certificate that matches your DNS and import it into your trust manually.

Live event status dots are used for troubleshooting problems with your Tower instance and the socketio logs can point out anything problematic. You can collect troubleshooting help by running a sosreport. As root, run the command sosreport from your system to automatically generate a diagnostic tar file, then contact Ansible’s Support team with the collected information for further assistance.

Note

Starting with Ansible Tower 2.2.0, live events status indicators only appear if Tower detects a problem. In earlier releases, a green status dot was shown to indicate a healthy system.

This error is the result of Safari silently refusing to establish a connection to a web socket that is using a self-signed certificate. To resolve this issue, you must set Safari to always trust the website upon first visiting it:

Close the current browser and revisit the site. An error message appears stating Safari can’t verify the identity of the website.

Click Show Certificate.

Check the Always trust ... when connecting to ... checkbox to allow Safari to accept the connection.

If you click Continue without checking the checkbox, this error will persist.

Ansible Tower 3.2 contains bindings for Microsoft Azure compatible with Ansible 2.4. However, these bindings will not work with Ansible 2.3, Tower 3.1, and earlier. If you are using Azure with Ansible Tower 3.2 or later, you must use Ansible 2.4 or later.

Instances have been reported that sudo/su commands do not work when using an entirely local playbook or a playbook with some local_actions cases. This is likely due to PRoot being enabled. To use sudo/su commands with local playbooks or those with local_actions, PRoot must be disabled. You can disable PRoot through the Jobs tab of the Configure Tower screen by setting the Enable Job Isolation toggle to OFF:

The PRoot functionality in Ansible Tower limits which directories on the Tower file system are available for playbooks to see and use during playbook runs. If you are attempting to customize SSH behavior by using a custom SSH configuration in the Tower user’s home directory, this directory must be added to the list of directories exposed by PRoot.

For example, to add a custom SSH config in /var/lib/awx/.ssh/config and make it available for Tower jobs, you can specify the path in the Job Execution Isolation Path field accessed from the Jobs tab of the Configure Tower screen:

If you are using the bundled installer for Ansible Tower, note that only Red Hat Enterprise Linux and CentOS are supported at this time. Ubuntu support has not yet been added to the bundled installer. Ubuntu users can continue to use the unbundled installer.

Proactive session limits will kick the user out when the session is idle. It is strongly recommended that you do not set the session limit to anything less than 1 minute, as doing so will break your Ansible Tower instance.

Ansible 2.0 introduces strategies, such as strategy:free, but Ansible Tower support for these new strategies is not yet available in Tower version 2.4.0. This Ansible feature will not be added to Tower until a later release.

If you attempt to use strategy:free or the serial keyword in Ansible Tower, jobs will run, but they will not display properly in the Job Detail page.

Once a user who logs in using social authentication has been deleted, the user will not be able to login again or be recreated until the system administrator runs a cleanup_deleted action with days=0 to allow users to login again. Once cleanup_deleted has been run, Tower must be restarted using the ansible-tower-servicerestart command. Accounts which have been deleted prior to having the cleanup_deleted action run will receive a “Your account is inactive” message upon trying to login.